Belt-casing for axle-driven dynamos.



No. 803,240. PATENTED 00T. 31, 1905. R. M. NEWBOLD.

BELT CASINGIOR AXLE DRIVEN DYNAMOS. APPLIOATION FILED 11.1.3.8, 1904. RBNBWBD JULY 22.1905.

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TINTTFD STATES.

PATENT FFICE.

BELT-CASING FOR 'AXLE-DRIVEN DYNAIVIOS.

Specific-ation of Letters Patent.

Patented oct. 31, i905.

Application iiled March 8, 1904. Renewed July 22, 1905. Serial No. 270895.

To CLM whom t may concern:

Be it known that I, ROGER M. N EwBoLD, a citizen of the United States, residing at Birmingham, in the county of Jeerson and State of Alabama, have invented certain new and useful Improvements in Belt Casings for Axle-Driven Dynamos, of which the following is a specification.

My inventionrelates to means for protecting the driving mechanism which transmits motion from a car-wheel or aXle to a dynamo supported by the car or truck and adapted to generate electricity for lighting, heating, or ventilating railway-cars.

It is the object of my invention to provide a novel and improved casing within which the dynamo-driving mechanism is inclosed and fully protected from the injurious effects of snow, ice, or dust, which otherwise might seriously interfere with its operation. Such a rotecting means is particularly necessary W ere a belt is used to drive the dynamo, which, as here shown, is suspended from the truck outside of an end sill thereof. Since this casing should possess considerable strength and should be secured iirmly in place, it follows that provision must be made to facilitate the inspection, repair, and replacement of the belt without ismounting the casing or taking it apart. To this end I provide a sectional casing supported near its center from the truck and having hinged outwardlyswinging sections which when opened give full access to the belt and the dynamo and shaft-pulleys.

My invention comprises the details of construction and arrangement of parts hereinafter described and claimed, and illustrated in the accompanying drawings, in which- Figure 1 is a sectional view through an end of a truck, showing the manner of suspending the dynamo and the belt-casing in side elevation. Fig. 2 is a top plan view of the belt-casing. Fig. 3 is a rear end view of the casing. Fig. 4 is a detail sectional view taken along the line a a, Fig. 2. Fig. 5 is a detail sectionalview of the overlap ing joints of the casing, taken along the line l), Fig. 1.

Similar reference-numerals refer to similar parts throughout the drawings.

I have illustrated my invention in connection with a truck 1, which may be of ordinary construction, having side beams 2, an inboard-beam 3, and an end side sill 4. The main supporting-bars 5 for the dynamo are connected at their inner ends to clips 6, se-

curely bolted to the side beams 2. From this oint the bars lead forward along the side earns, to which they are bolted, and pass over end sill 4, beyond which they eX- tend. A transverse supporting-bar 7 is connected to the outer ends of the bars 5. Two hanger-irons 8, connected to bar 7 and end sill 4, support a dynamo 9, pivotallymounted in bail-shoes 10 and disposed outside of the truck-frame. A pulley 11 is keyed to the armature-shaft of the dynamo and disposed in alinement with a split pulley 12, rigidly mounted on an axle 13 of the truck. A driving-belt 14, which is the preferable iiexible driving means employed, passes around these two pulleys. Suitable provision may be made inthe manner described in Letters Patent No. 766,891, issued to meAugust 9,1904, to maintain the pulleys in alinement, and I have shown a spring-tension adjustingrod 15, pivotally connected to the dynamo and passing through bar 7, which acts to maintain the belt at the proper tension byits tendency to swing the pivoted dynamo and its pulley away from the driving-axle.

I provide a casing 16 to cover and protect the driving belt and pulleys, which is bolted at its center to the under side of sill 4 and at its inner end to an inverted- T bar 17, which is supported by a bar 18, connected across the side beams 2. [he front section of the casing is divided into two parts 19 and 20 and the rear section of the casing into two parts 21 and 22. An angle-iron 23 is riveted to part 21 and to aflange of the T-bar 17, while the spring-bar 24 is riveted to part 22 of the casing and has an angled end 25, which is bolted to the other flange of the T-bar 17, which thus serves to independently support both parts of the rear section of the casing. The parts 19 and 20 of the front section have iianged abutting edges 26, which are bolted together, and in a similar manner parts 21 and 22 of the rear section have abutting flanges 27, by which they are bolted together. The casing is connected to sill 4 by angle-irons 28, riveted to section 21 and to the under side of said sill. Section 21 is also bolted to beam 2. Parts 19 and 20 are provided at their inner ends with flanged strips 29, which overlap the sides of sections 21 and 22 in the manner shown in Fig. 5, thus preventing the entrance of sand orsnow into the casing through the joints between sections. A hinge 30 connects the front section 19 to sill 4, and a hinge 31 connects the rear sec- IOO tion 22 and the lower part of front section 20. In this mannere by removing the bolts 32, which pass through the anges 26, the section 19 may be lifted on the hinge 30 and the section 20 swung downwardly on hinge 31, thus giving full access to the front end of the casing and pulley 11. In the same manner by removing the bolts 33, which connect the flanges 27, and also the bolt which connects part 25 of bar 24 to the T-bar 17 and springing 25 out of engagement with said bar section 22 may be swung on hinge 31 and access gained to the rear portion of the casing and to the axle-pulley, which can thus be readily replaced. An opening is provided in the top of section 21, which is closed by a sliding door 34, moving in guides 35, formed by flanges integral with the top of said section and angle-irons securely riveted to the inner sides thereof, as seen in Fig. 4. This door can be entirely withdrawn to permit the belt to be inspected without the necessity of opening the casing in the' manner hereinbefore described. A hasp 36 is secured to the sill 4 and engages a staple 37, formed on the inner end of the door 34, so that the latter may be locked in position by a split pin 38. l provide a handle 39 for moving the sliding door. According to the latter construction it will be evident that without disengaging the casing from the truck access mayv` be had to all parts of the driving mechanism not only for readyfinspection, but for a complete repair.

The rear portion of the casing is provided with the usual elongated openings 40, through which the aXle 13 passes, and openings 41 42 43 for the brake-bars, which pass therethrough without interfering with the belt. These several openings, as well as that for the armature-shaft, will be closed by ieXible shields of any suitable construction to prevent dust, sand, snow, or foreign articles gaining access to the casing and interfering with the belt.

The opening 42 for the brake-bar is shown elongated to provide for the play of the latter in setting and releasing the brakes, the brakebars not being here shown.

It is my purpose to strengthen the sectional casing by providing angle-irons 44, which are secured to the inner sides of adj acent sections and abut when these sections are secured together, as illustrated in Fig. 5. This strengthens and braces the casing without materially increasing the cost of construction.

My belt-casin as hereinbefore described, may be used wifliany kind of driving mechanism, and where the dynamo is suspended.

in a different manner or within the truck it may be readily adapted for use therewith without materially departing from the spirit of my invention. It is also true that the casing may be varied as to the manner of hinging the sections and in the details of construction within the scope of my invention` Having thus described my invention, what l claim as new, and desire Vto secure by Letters Patent, is-' 1. The combination with a dynamo suspended forward of the end beam of a truck and having its armature-shaft driven by a belt from an aXle of said truck, of a casing for said belt secured near its central portion to said end sill, one part of the forward section of said casing being hinged to said end sill and the other part to the rear portion of said casing, and means to support the rear end of said casing.

2. The combination with a dynamo suspended forward of the end beam of a truck and having its armature-shaft driven by a belt from an axle of said truck, of a casing for said belt secured near its central portion to said end sill, one part of the forward section of said casing being hinged to said end sill, and the other part to the rear section thereof which is also formed in two parts the lower of which is hinged to a part of said front section, and means to support the rear end of said casing. 3. The combination with an axle-driven dynamo mounted on a truck, and means to drive said dynamo, of a casing inclosing said means and formed with a two-part front and a rear section, and supported near its central portionfrom an end sill of said truck, the parts of said front section being adapted to open on hinges, and a door giving access to said rear section.

4. The combination with an axle-driven dynamo suspended outside of a truck and means for driving said dynamo, of a casing inclosing said driving means and comprising a main body portion secured to said truck IOO and formed in two parts bolted together,

and a forward body portion formed in two sections secured to said main body portion by hinges and adapted to swing outwardly to open the end of the casing.

5. The combination with an axle-driven dynamo suspended outside of a truck and a driving means for said dynamo, of a casing for said driving means comprising a front and rear section, each of which is formed in two parts, which parts are normally bolted together, means to support said casing from said truck at its rear and central portion, a hinge connecting the lower parts of the front and rear sections upon which either of said parts may swing open, a hinge means for supporting the other part of said front section, and a door giving access to the upper part of said rear casing.

6. The combination with an axle-driven dynamo mounted on a truck, of a casing to inclose the driving means for said dynamo, said casing being provided with hinged outwardlyswinging sections constituting its IIO IIS

front end, and a second hinged portion constituting a part of the rear portion of the casing, a door in the other part of said rear portion of said casing, and means connected to said truck and to an'end sill thereof, which support said casing.

7. A protective casing for the driving means of axle-driven dynamos, comprising a sectional casing divided primarily into upper and lower sections which are detachably connected together, means to connect said casing at an intermediate point to the truckfraine, said lower section comprising a hinged portion which is adapted to swing open and expose said driving means, for the purposes described.

8. A protective casing for the driving means of axle-driven dynainos, comprising a sectional casing divided primarily into upper and lower sections which are detachably connected together, said lower section being formed in two parts which are hinged together, so that either may be swung downwardly to expose one end of the driving means, for the purposes described.

9. A protective casing for the driving means of axle-driven dynamos, comprising a sectional casing divided primarily into upper and lower sections which are detachably connected together, and comprise adjacent hinged portions adapted, when swung outwardly on their hinges, to give access to said casing, for the purposes described.

10. The combination with a dynamo supported by a truck and driven by an axle of said truck, and means to drive said dynamo, of a protective casing for said driving means which passes around said axle and the armature-shaft of said dynamo, means to sup.

port said casing from said truck, said casing being formed in sections to enable it to be passed around said axle and havinor openings through which said shaft and ax e pass, the end of said casing adjacent to the dynamo having a pivoted outwardly-swinging section which, when open, gives access to said shaft and said driving means in operative connection therewith, and means to secure said section in its closed position.

11. In combination with an axle-driven dynamo suspended from a truck, a sectional casing inclosing the driving mechanism, said casing comprising a main body portion, which passes over an axle and is connected to the Von a substantially horizontal plane, said sections being detachably connected to each other and adapted, when disconnected, to swing outwardly, and hinge connections on which said sections swing.

12. In combination with an axle-driven dynamo suspended from a truck, a driving connection between the armature-shaft. of said dynamo and an axle, a sectional casing for protecting said driving means which is supported by said truck, openings in said casing through which said shaft and axle and a brake-bar pass, one of said openings'ior said brake-bar being elongated, as and for the purposes described.

13. A casing for the purposes described, means to support said casing from a truck, and openings in said casing through which brake-bars of the truck pass.

14. A belt-casing divided into four sections, abutting on lines longitudinal and transverse as to the casing as a whole, the several sections being independently openable.

15. A belt-casing comprising, in combination, front and rear abutting sections, one of such sections being hinge-supported 16. A belt-casing comprising, in combination, front and rear abutting sections, such sections being hinge-supported at their inner ends.

17. A belt-casing comprising, in combination, front`and rear abutting sections, one of such sections being separable into upper and lower parts, the upper part being hinge-supported at its upper inner end and the lower part being hinge-supported at its lower inner end.

18. A belt-casing comprising, in combination, upper and lower abutting sections, the lower section being divided intermediate of its ends, the two parts being hinged together at their lower meeting edges.

In testimony whereof` I have signed my name to this specification in presence of two witnesses.

ROGER M. NEWBOLD.

Witnesses:

H. M. HARTON, R. D. JOHNSTON, Jr.

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